株式会社マニア・マニア News Releases

Mania Mania Inc. Changes Name to 'Watanabe Education Co., Ltd.'

Mania Mania Inc., which operates entertainment schools directly managed by Watanabe Entertainment, c… · 2026-04-23

Mania Mania Inc. Changes Name to 'Watanabe Education Co., Ltd.'

Mania Mania Inc., which operates entertainment schools directly managed by Watanabe Entertainment, c… · 2026-04-23